well, done it in school Lecture Theatre, think the aircon's
cool. and the echos are shiok. Of course no one there lah. But
created a mess on the carpeted floor.
Toilets also got, but there was once me and my ex-partner, was
doing it, and when we finished, we heard the cubicle next door
flushing the toilet and the guy promptly went to wash his hands and
left!!!